EP0325947B1 - Folgeverfahren und Folgewerkzeug für Stanzteile - Google Patents

Folgeverfahren und Folgewerkzeug für Stanzteile Download PDF

Info

Publication number
EP0325947B1
EP0325947B1 EP19890100405 EP89100405A EP0325947B1 EP 0325947 B1 EP0325947 B1 EP 0325947B1 EP 19890100405 EP19890100405 EP 19890100405 EP 89100405 A EP89100405 A EP 89100405A EP 0325947 B1 EP0325947 B1 EP 0325947B1
Authority
EP
European Patent Office
Prior art keywords
die
punched
outer contour
blanking
station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19890100405
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0325947A2 (de
EP0325947A3 (en
Inventor
Reinhard Tusch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
E Winkemann & Co KG GmbH
Original Assignee
E Winkemann & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by E Winkemann & Co KG GmbH filed Critical E Winkemann & Co KG GmbH
Publication of EP0325947A2 publication Critical patent/EP0325947A2/de
Publication of EP0325947A3 publication Critical patent/EP0325947A3/de
Application granted granted Critical
Publication of EP0325947B1 publication Critical patent/EP0325947B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/16—Making other particular articles rings, e.g. barrel hoops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process

Definitions

  • the invention relates to a follow-up process for the production of stamped parts in several steps, such as shaping steps, catching step and punch cutout, the punched part being cut out by a punch in accordance with the outer contour of the punched part in cooperation with a die.
  • steps such as shaping steps, catching step and punch cutout
  • the punched part being cut out by a punch in accordance with the outer contour of the punched part in cooperation with a die.
  • the punch cut-out always creates a punch feed, see DIN 6930, Figure 1.
  • the size of this punch feed depends on the material, the material thickness, the strength of the material and other parameters.
  • the punch feed cannot be avoided because it is caused by production.
  • the punch feed reduces the shape accuracy of the stamped parts.
  • the function of the stamped parts in the installed state is not guaranteed as a result of this stamping.
  • an additional machining operation e.g. B. grinding, necessary.
  • a layer of material is removed in the thickness of the punch feed.
  • the initial thickness of the sheet metal strip must be made larger by this grinding. This means high material consumption and also high labor costs for the additional grinding process.
  • the object of the invention is to provide a follow-up method which delivers stamped parts with an almost disappearing punch feed.
  • This object is achieved according to the invention in that an embossing in the depth of a fraction of the punched strip thickness with an outer contour slightly larger than the outer contour of the stamped part takes place in an embossing step preceding the stamped cutout and that the punch feed created during the embossing step is made to flow in the punch cutout, so that a cutting surface with straight profile lines is obtained.
  • the invention differs from the prior art in that in an additional stamping step with an oversize, a punched feed is intentionally generated. However, this punch feed is deformed in the punch cutout, so that a punched part with straight cutting lines is obtained which is free of punch feed. There is no post-processing.
  • the additional embossing step fits easily into the subsequent processing, without the need for an additional step.
  • the method of the invention is applicable to annular, disc-shaped or profiled stamped parts.
  • a particularly good cut surface in the punching cut is obtained in that the depth of the embossing is 10 to 50% of the thickness of the punched strip.
  • the quality of the cut surface can be further improved in that the depth of the embossing is 20 to 30% of the punched strip thickness.
  • the invention further proposes a follow-up tool for stamped parts with several stations such as forming stations, catching station and cutting station, which comprises a stamping die corresponding to the outer contour of the stamped part and a corresponding die.
  • stations such as forming stations, catching station and cutting station
  • a stamping die corresponding to the outer contour of the stamped part and a corresponding die.
  • an embossing station is provided in front of the cutting station, the embossing die and embossing die of which has an outer contour somewhat larger than the outer contour of the stamped part and whose dimensioning is such that the impression depth of the embossing stamp makes up a fraction of the punched strip thickness.
  • This follow-on tool allows the production of stamped parts without punching.
  • An existing follow-up tool can easily be converted according to the teaching of the invention.
  • the transverse dimensions of the stamping die are up to 10% larger than the transverse dimensions of the stamped part.
  • a follow-up tool for producing annular disks from a punched strip 3 is shown.
  • the punching strip 3 runs between the lower tool 1 and the upper tool 2.
  • the 1st station is a punching station with a punch 4 and a die 5 for forming a hole 9.
  • a catch pin 6 can be seen, which is used to align the punched strip 3 in register.
  • an embossing stamp 7 can be seen which forms an internal countersink 8 of the hole 9.
  • a fourth station with an embossing stamp 10 and an embossing die 21 shows the essence of the invention.
  • the outer diameter of the stamp 10 is up to 10%, in particular up to 5% larger than the outer diameter of the finished stamped part 22.
  • the stamp 10 produces an embossed impression according to FIGS. 1 and 2 to the depth of a fraction of the stamped strip thickness.
  • the embossing impression is 10 to 50%, in particular 20 to 30% of the punched strip thickness.
  • 2 clearly shows the embossing step 11 on the side of the embossing stamp and the punch feed 12 on the opposite side of the punched strip 3.
  • the dashed lines 23 indicate the nominal diameter of the finished stamped part.
  • the opposite inner countersink 16 of the hole 9 is formed by means of a lower die 13, a holder 14 and a core 15.
  • the last station there is also a catch pin 19 and also a punch 17 which cooperates with a die 18.
  • the outer diameter of the punch 17 corresponds to the finished diameter of the stamped part 22. It can be seen that the outer edge and the outer edge of the embossing stage 11 remain.
  • the punch feed 12 on the opposite side is made to flow when cut out and deformed into a cylindrical cutting surface with smooth and straight cutting lines, as can be clearly seen from FIG. 3.
  • the stamped part 22 is ejected in the direction of the arrow.
  • FIG. 3 The outer surface of the finished stamped part according to FIG. 3 is exactly one cylinder surface. A punch feed does not occur to any appreciable extent on.
  • FIG. 4 shows a stamped part 22 which is produced by a conventional follow-up method. One recognizes the clear punch feed 20, which in many cases requires a post-treatment to make the punch part fully usable.
  • annular disc The production of an annular disc is shown above.
  • the invention can also be used in the production of solid panes and molded parts of any profiling. In the subsequent process, of course, other usual intermediate steps for deformation can be carried out. A follow-up tool can still be retrofitted so that the method according to the invention can be carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
EP19890100405 1988-01-27 1989-01-11 Folgeverfahren und Folgewerkzeug für Stanzteile Expired - Lifetime EP0325947B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883802247 DE3802247C1 (enrdf_load_stackoverflow) 1988-01-27 1988-01-27
DE3802247 1988-01-27

Publications (3)

Publication Number Publication Date
EP0325947A2 EP0325947A2 (de) 1989-08-02
EP0325947A3 EP0325947A3 (en) 1990-09-05
EP0325947B1 true EP0325947B1 (de) 1992-05-20

Family

ID=6346018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890100405 Expired - Lifetime EP0325947B1 (de) 1988-01-27 1989-01-11 Folgeverfahren und Folgewerkzeug für Stanzteile

Country Status (3)

Country Link
EP (1) EP0325947B1 (enrdf_load_stackoverflow)
DE (1) DE3802247C1 (enrdf_load_stackoverflow)
ES (1) ES2032056T3 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240053817A (ko) * 2022-10-18 2024-04-25 하은테크(주) 프로그레시브 금형 시스템 및 이를 이용한 제품 제조방법

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755104C2 (de) * 1997-12-11 2000-11-02 Freudenberg Carl Fa Verfahren zur Herstellung eines Ringes
AT502173B1 (de) * 2004-03-12 2007-02-15 Gassner Ges M B H & Co Kg Verfahren zum lochen eines bleches
US7308814B2 (en) 2005-10-13 2007-12-18 Gassner Ges.M.B.H. & Co Kg Method for perforating a sheet
DE102012103167B4 (de) 2012-04-12 2018-08-02 BINDER tecsys GmbH Verfahren und Vorrichtung zur Verringerung eines Stanzeinzugs
DE102013217303A1 (de) * 2013-08-30 2015-03-05 Robert Bosch Gmbh Stanzgitter für ein Premold-Sensorgehäuse
FR3021565B1 (fr) 2014-06-02 2017-01-13 Centre Technique Des Ind Mec Procede et installation de transformation progressive de materiau metallique en bande
CH711646A1 (de) * 2015-10-14 2017-04-28 Hatebur Umformmaschinen Ag Verfahren und Vorrichtung zur Herstellung eines ringförmigen Formteils.
DE102016107300B4 (de) * 2016-04-20 2025-06-12 Elringklinger Ag Verfahren zur Herstellung einer zwischen Gehäuseteilen einer Steuerung für druckmittelbetriebene Verbraucher montierbare Zwischenplatte
FR3084602B1 (fr) * 2018-07-31 2020-07-17 Precitechnique Dauphine Outils d’une presse a emboutir et procede d’emboutissage mettant en œuvre de tels outils
CN112207202B (zh) * 2020-10-20 2022-08-19 东风汽车零部件(集团)有限公司通用铸锻分公司 一种锥形挡圈镦挤压成形方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE758810A (fr) * 1969-11-15 1971-04-16 Kondo Kazuyoshi Procede de cisaillement de precision
DE2727445C2 (de) * 1977-06-18 1979-09-06 Lange, Kurt, Prof. Dr.-Ing., 7000 Stuttgart Verfahren und Vorrichtung zum Ausschneiden und/oder Lochen von Werkstücken aus metallischen Flachwerkstoffen
US4477537A (en) * 1982-09-23 1984-10-16 Blase Tool And Manufacturing Co., Inc. Method for producing burr-free blanks and the blanks produced thereby
DE3324680A1 (de) * 1983-07-08 1985-01-24 DAKO-Werkzeugfabriken David Kotthaus GmbH & Co KG, 5630 Remscheid Verfahren zum feinschneiden von werkstuecken und feinschneidwerkzeug zur ausuebung des verfahrens
CH665367A5 (en) * 1984-09-17 1988-05-13 Feintool Ag Eliminating material burr at edges of press-cut component - by at least one corrective cutting step on step-wise moving metal strip
CH669748A5 (enrdf_load_stackoverflow) * 1984-11-28 1989-04-14 Feintool Int Holding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240053817A (ko) * 2022-10-18 2024-04-25 하은테크(주) 프로그레시브 금형 시스템 및 이를 이용한 제품 제조방법
KR102830761B1 (ko) 2022-10-18 2025-07-07 하은테크(주) 프로그레시브 금형 시스템 및 이를 이용한 제품 제조방법

Also Published As

Publication number Publication date
EP0325947A2 (de) 1989-08-02
DE3802247C1 (enrdf_load_stackoverflow) 1989-05-18
ES2032056T3 (es) 1993-01-01
EP0325947A3 (en) 1990-09-05

Similar Documents

Publication Publication Date Title
EP0725693B1 (de) Verfahren zur spanlosen herstellung einer nabe eines die nabe aufweisenden getriebeteiles
DE4294681C2 (de) Verfahren zum Formen einer Nabe in einem platten- oder scheibenförmigen Metallrohling
DE3326580A1 (de) Verfahren und anordnung zur herstellung einer duesenplatte fuer tintenstrahldrucker
DE69405916T2 (de) Stanzwerkzeug
EP0325947B1 (de) Folgeverfahren und Folgewerkzeug für Stanzteile
DE2509107C2 (de) Verfahren zum Herstellen eines Kommutators
DE3891152C1 (enrdf_load_stackoverflow)
WO2005122337A1 (de) Einpresskontakt und verfahren zu dessen herstellung
EP2542363B1 (de) Verfahren und vorrichtung zum ziehen und beschneiden von platinen
EP1775042B1 (de) Verfahren und Vorrichtung zum Lochen eines Bleches
DE3911441C2 (de) Verfahren zur Herstellung eines halbgeteilten Lagers
DE102011075254A1 (de) Schnittwerkzeug für Stanzmaschinen mit mechanischer Stanzteilentfernung
DE102009051271A1 (de) Montagehilfe zum Stanzpaketieren
DE2919340C2 (de) Radscheibe sowie Verfahren zu ihrer Herstellung
DE4444857C1 (de) Verfahren und Vorrichtung zur Herstellung mindestens einer Öffnung in der Wandung eines rohrartigen Teils
EP0784016A1 (de) Stapelbare Ziehteile, sowie ein Verfahren und eine Vorrichtung zur Herstellung derselben
EP1741497B9 (de) Verfahren und Werkzeug zur spanlosen Herstellung von Werkstücken mit einer Kerbe und Werkstück mit einer Kerbe
DE102020003744A1 (de) Bodenteil zur Herstellung einer Patronenhülse sowie Patronenhülse, Verfahren zur Herstellung eines Bodenteils für eine Patronenhülse sowie Verfahren zur Herstellung einer Patronenhülse
WO2002034428A1 (de) Verfahren zur herstellung von flanschplatten sowie flanschplatte
DE19957076B4 (de) Verfahren und Vorrichtung zum Lochen von Blechformteilen aus einem Aluminiumwerkstoff
EP3241628A1 (de) Verfahren und vorrichtung zur herstellung eines nockenstreifens
EP1632297B1 (de) Verfahren und Werkzeug zum Stanzen und/oder Formen
EP1321202B1 (de) Fertigungsverfahren und Innenhochdruckumformwerkzeug zur Durchführung des Fertigungsverfahrens
DE202007005755U1 (de) Vorrichtung zum Stanzen eines Lochs in Blechen mit einer Fase
DE10149546A1 (de) Verfahren und Vorrichtung zur Ausbildung eines Funktionsbereiches an einem Blech

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): ES FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): ES FR GB IT

17P Request for examination filed

Effective date: 19901228

17Q First examination report despatched

Effective date: 19911105

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES FR GB IT

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2032056

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20050119

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20050124

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20050128

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060111

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060131

Year of fee payment: 18

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20060111

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060929

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070111